机械5

反击式破碎机的设计 摘要 在国民经济建设中，水泥是不可或缺的基础原材料。作为重要的基础产业，水泥行业的发展程度成为一个国家社会发展水平和综合实力的重要衡量指标。我国经济正处于高速发展期，基础设施建设成为国内投资最主要的方式。因此，水泥作为最主要的原材料之一，必然也处于扩张阶段水泥生产过程中，大部分原料要进行粉碎，如石灰石、黏土、铁矿石、煤等。石灰石是生产水泥用量最大的原料，开采后的粒度较大，硬度较高，因此石灰石的破碎在水泥厂的物料破碎中占有比较重要的地位。 在新的市场需求的驱动下，矿山开采设备的更新和优化升级更加迫切。国内圆锥破碎机设备生产企业充分挖掘市场潜力，大力发展大型环保节能的圆锥破碎机械设备，在绿色环保化矿山开采的转变中挥积极作用。一般生产大型圆锥破碎机设备的企业对设备环保指数上都有严格的要求。各企业在生产设备时，都充分考虑到设备在运行中可能会出现的种种问题，从而减少设备因为振动或者操作不当而引起的噪音大、污染重等现象。 关键词：反击式破碎机矿山开采工作效率外观 Desig
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ne theuppercover 目录 1绪论..................................................................1 1.1反击式破碎机的发展情况.........................................3 1.2反击式破碎机的应用.............................................4 1.3各种反击式破碎机的特点.........................................4 1.4反击式破碎机的发展方向.........................................5 1.5反击式破碎机的优缺点...........................................6 1.5.1反击式破碎机的优点..........................................6 1.5.2反击式破碎机的缺点..........................................6 2反击式破碎机的总体方案及结构设计......................................6 2.1反击式破碎机的工作原理.....................................6 2.2反击式破碎机的结构和布置形式...............................9 2.2.1反击式破碎机的结构.....................................9 2.2.2反击式破碎机的布置方式................................9 2.3破碎的目的和意义..........................................11 2.3.1破碎的目的............................................11 2.3.2破碎的意义...........................................11 3反击式破碎机的设计计算.........................................11 3.1转子转速的计算...................................11 3.2生产率的计算.....................................12 3.3主电动机的选择及传动比的分配..............................12 3.3.1电动机的选择........................................12 3.3.2传动比的分配.......................................12 3.4主轴的设计计算...................................12 3.4.1主轴的设计..........................................12 3.4.2主轴的校核.........................................13 3.5 V带传动的设计计算................................14 3.5.1设计功率..........................................14 3.5.2选定带型..............................................14 3.5.3传动比................................................15 3.5.4小带轮基准直径........................................15 3.5.5大带轮基准直径........................................15 3.5.6带速验算..............................................15 3.5.7初定轴间距...........................................15 3.5.8所需带的基准长度.....................................15 3.5.9实际轴间距............................................15 3.5.10小带轮包角...........................................16 3.5.11单根V带的基本额定功率...............................16 3.5.12时单根V带型额定功率增量..........................16 3.5.13V带的根数............................................16 3.5.14单根V带的预紧力.....................................16 3.5.15作用在轴上的力.......................................17 3.5.16带轮的结构和尺寸....................................19 3.6后反击部的设计....................................20 4各主要零件强度的校核计算.........................19 4.1滚动轴承的校核及寿命计算...........................24 4.2键连接的设计与校核.................................24 4.2.1键的连接................................................25 4.2.2键的校核................................................25 5结论.................................................................26 6参考文献.............................................................27 致谢..................................................................28